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BOSTON MARATHON 2025

Jessica Gass

Bib: 10414•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 17%
Gender (Female)
#0 / 12228
Top 3%
Division (F18-39)
#0 / 5469
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:28
Rank: #7157
Start → 5K
21:28 | 6:55/mi
10K· 6.21 mi
42:55
Rank: #7208 (-51)
5K → 10K
21:27 | 6:54/mi
15K· 9.32 mi
1:04:26
Rank: #7188 (+20)
10K → 15K
21:31 | 6:56/mi
20K· 12.43 mi
1:26:00
Rank: #6989 (+199)
15K → 20K
21:34 | 6:56/mi
Half· 13.11 mi
1:30:43
Rank: #6988 (+1)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:47:22
Rank: #6661 (+327)
Half → 25K
16:39 | 6:52/mi
30K· 18.64 mi
2:08:58
Rank: #6104 (+557)
25K → 30K
21:36 | 6:57/mi
20M
2:18:17
Rank: #5830 (+274)
30K → 20M
9:19 | 6:51/mi
21M
2:25:29
Rank: #5626 (+204)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:30:16
Rank: #5452 (+174)
21M → 35K
4:47 | 6:24/mi
23M
2:38:46
Rank: #5210 (+242)
35K → 23M
8:30 | 6:47/mi
24M
2:45:31
Rank: #5093 (+117)
23M → 24M
6:45 | 6:45/mi
40K· 24.85 mi
2:51:18
Rank: #4970 (+123)
24M → 40K
5:47 | 6:46/mi
25.2M
2:53:54
Rank: #4928 (+42)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:00:51
Rank: #4883 (+45)
25.2M → Finish
6:57 | 6:49/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:30:43
Pace6:55 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:08
Pace6:53 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5921:286:5521:28
6:55
-
10K
6.21 mi11:08:2642:556:5421:27
6:54
-0:01
15K
9.32 mi11:29:571:04:266:5521:31
6:56
+0:02
20K
12.43 mi11:51:311:26:006:5521:34
6:56
0:00
Half
13.11 mi11:56:141:30:436:554:43
6:55
-0:01
25K
15.53 mi12:12:531:47:226:5516:39
6:52
-0:03
30K
18.64 mi12:34:292:08:586:5521:36
6:57
+0:05
20M
20.00 mi12:43:482:18:176:559:19
6:51
-0:06
21M
21.00 mi12:51:002:25:296:567:12
7:12
+0:21
35K
21.75 mi12:55:472:30:166:554:47
6:24
-0:48
23M
23.00 mi13:04:172:38:466:548:30
6:47
+0:23
24M
24.00 mi13:11:022:45:316:546:45
6:45
-0:02
40K
24.85 mi13:16:492:51:186:545:47
6:46
+0:01
25.2M
25.20 mi13:19:252:53:546:542:36
7:32
+0:46
Finish
26.22 mi13:26:223:00:516:546:57
6:49
-0:43

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:24 /mi

Average Pace

6:54 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:03

95% of race

Time at Steady Pace

9:48

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:54 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:46:5921:286:5521:28
6:55
#7157
10K
6.21 mi11:08:2642:556:5421:27
6:54
#7208
15K
9.32 mi11:29:571:04:266:5521:31
6:56
#7188
20K
12.43 mi11:51:311:26:006:5521:34
6:56
#6989
Half
13.11 mi11:56:141:30:436:554:43
6:55
#6988
25K
15.53 mi12:12:531:47:226:5516:39
6:52
#6661
30K
18.64 mi12:34:292:08:586:5521:36
6:57
#6104
20M
20.00 mi12:43:482:18:176:559:19
6:51
#5830
21M
21.00 mi12:51:002:25:296:567:12
7:12
#5626
35K
21.75 mi12:55:472:30:166:554:47
6:24
#5452
23M
23.00 mi13:04:172:38:466:548:30
6:47
#5210
24M
24.00 mi13:11:022:45:316:546:45
6:45
#5093
40K
24.85 mi13:16:492:51:186:545:47
6:46
#4970
25.2M
25.20 mi13:19:252:53:546:542:36
7:32
#4928
Finish
26.22 mi13:26:223:00:516:546:57
6:49
#4883
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi71577197197133(Top 25%)765(Top 6%)765(Top 14%)
10K6.21 mi3.10 mi7208-51741-22741-227266(Top 26%)761(Top 6%)761(Top 14%)
15K9.32 mi3.11 mi7188+20743-2743-27133(Top 25%)765(Top 6%)765(Top 14%)
20K12.43 mi3.11 mi6989+199707+36707+366529(Top 23%)663(Top 5%)663(Top 12%)
Half13.11 mi0.68 mi6988+1709-2709-27039(Top 25%)764(Top 6%)764(Top 14%)
25K15.53 mi2.42 mi6661+327651+58651+585432(Top 19%)475(Top 4%)475(Top 9%)
30K18.64 mi3.11 mi6104+557582+69582+694415(Top 16%)364(Top 3%)364(Top 7%)
20M20.00 mi1.36 mi5830+274526+56526+563276(Top 12%)238(Top 2%)238(Top 4%)
21M21.00 mi1.00 mi5626+204490+36490+363174(Top 11%)239(Top 2%)239(Top 4%)
35K21.75 mi0.75 mi5452+174468+22468+222046(Top 7%)125(Top 1%)125(Top 2%)
23M23.00 mi1.25 mi5210+242439+29439+292677(Top 9%)208(Top 2%)208(Top 4%)
24M24.00 mi1.00 mi5093+117434+5434+53271(Top 12%)317(Top 3%)317(Top 6%)
40K24.85 mi0.85 mi4970+123419+15419+152718(Top 10%)242(Top 2%)242(Top 4%)
25.2M25.20 mi0.35 mi4928+424194193662(Top 13%)464(Top 4%)464(Top 8%)
Finish26.22 mi1.02 mi4883+45416+3416+34642(Top 16%)737(Top 6%)737(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7133

Females

765

F18-39

765

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7266

Females

761

F18-39

761

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7133

Females

765

F18-39

765

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6529

Females

663

F18-39

663

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

7039

Females

764

F18-39

764

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5432

Females

475

F18-39

475

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4415

Females

364

F18-39

364

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3276

Females

238

F18-39

238

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3174

Females

239

F18-39

239

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2046

Females

125

F18-39

125

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2677

Females

208

F18-39

208

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3271

Females

317

F18-39

317

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2718

Females

242

F18-39

242

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3662

Females

464

F18-39

464

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4642

Females

737

F18-39

737

Passing Analysis

Category:
Athletes Passed
2782
Passed By
508
Net Change
+2274
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7157
5K → 10K183234-51#7157#7208
10K → 15K151131+20#7208#7188
15K → 20K25758+199#7188#6989
20K → Half3029+1#6989#6988
Half → 25K3281+327#6988#6661
25K → 30K5625+557#6661#6104
30K → 20M2762+274#6104#5830
20M → 21M2051+204#5830#5626
21M → 35K1740+174#5626#5452
35K → 23M2431+242#5452#5210
23M → 24M1225+117#5210#5093
24M → 40K1241+123#5093#4970
40K → 25.2M497+42#4970#4928
25.2M → Finish7833+45#4928#4883
TOTALS2782508+2274
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing